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Clearing Diagnostic Trouble Codes

NOTE: The vehicle VAG 1551 system tester can be used instead of the VAG 1551 scan tool, however a print-out is not possible.
  1. Connect scan tool. See Figure .
  2. Initiate On Board Diagnostic (OBD). See INITIATING ON BOARD DIAGNOSTIC (OBD)  under RETRIEVING DIAGNOSTIC TROUBLE CODES.
  3. Press buttons "0" and "5" (the function "Erase DTC memory" is entered with 05).
  4. Confirm entry with the "Q" button.
  5. Press right arrow button.
    NOTE: If "DTC memory was not checked!" appears in the display, the test sequence is faulty. Adhere strictly to test sequence; first of all check DTC memory, then erase memory.
  6. Press buttons "0" and "6" to end the output.
  7. Confirm entry with the "Q" button.
  8. Switch off ignition.
  9. Disconnect connector to VAG 1551 scan tool.
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